Commit 0437de4f authored by Daniel Verkamp's avatar Daniel Verkamp Committed by Shaohua Li
Browse files

lib/raid6: sort algos in rough performance order 



Sort the list of RAID6 algorithms in roughly decreasing order of
expected performance: newer instruction sets first (within each
architecture) and wider unrollings first.

This doesn't make any difference right now, since all functions are
benchmarked; a follow-up change will make use of this by optionally
choosing the first valid function rather than testing all of them.

The Itanium raid6_intx{16,32} entries are also moved down to be near the
other raid6_intx entries for clarity.

Signed-off-by: default avatarDaniel Verkamp <dverkamp@chromium.org>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
parent 86919f9d

lib/raid6/algos.c

+38 −38
Original line number Original line Diff line number Diff line
@@ -34,64 +34,64 @@ struct raid6_calls raid6_call; 
EXPORT_SYMBOL_GPL(raid6_call);

EXPORT_SYMBOL_GPL(raid6_call);





const struct raid6_calls * const raid6_algos[] = {

const struct raid6_calls * const raid6_algos[] = {

#if defined(__ia64__)

	&raid6_intx16,

	&raid6_intx32,

#endif

#if defined(__i386__) && !defined(__arch_um__)

#if defined(__i386__) && !defined(__arch_um__)

	&raid6_mmxx1,

	&raid6_mmxx2,

	&raid6_sse1x1,

	&raid6_sse1x2,

	&raid6_sse2x1,

	&raid6_sse2x2,

#ifdef CONFIG_AS_AVX2

	&raid6_avx2x1,

	&raid6_avx2x2,

#endif

#ifdef CONFIG_AS_AVX512

#ifdef CONFIG_AS_AVX512

	&raid6_avx512x1,

	&raid6_avx512x2,

	&raid6_avx512x2,

	&raid6_avx512x1,

#endif

#endif

#endif

#if defined(__x86_64__) && !defined(__arch_um__)

	&raid6_sse2x1,

	&raid6_sse2x2,

	&raid6_sse2x4,

#ifdef CONFIG_AS_AVX2

#ifdef CONFIG_AS_AVX2

	&raid6_avx2x1,

	&raid6_avx2x2,

	&raid6_avx2x2,

	&raid6_avx2x4,

	&raid6_avx2x1,

#endif

#endif

	&raid6_sse2x2,

	&raid6_sse2x1,

	&raid6_sse1x2,

	&raid6_sse1x1,

	&raid6_mmxx2,

	&raid6_mmxx1,

#endif

#if defined(__x86_64__) && !defined(__arch_um__)

#ifdef CONFIG_AS_AVX512

#ifdef CONFIG_AS_AVX512

	&raid6_avx512x1,

	&raid6_avx512x2,

	&raid6_avx512x4,

	&raid6_avx512x4,

	&raid6_avx512x2,

	&raid6_avx512x1,

#endif

#ifdef CONFIG_AS_AVX2

	&raid6_avx2x4,

	&raid6_avx2x2,

	&raid6_avx2x1,

#endif

#endif

	&raid6_sse2x4,

	&raid6_sse2x2,

	&raid6_sse2x1,

#endif

#endif

#ifdef CONFIG_ALTIVEC

#ifdef CONFIG_ALTIVEC

	&raid6_altivec1,

	&raid6_altivec2,

	&raid6_altivec4,

	&raid6_altivec8,

	&raid6_vpermxor1,

	&raid6_vpermxor2,

	&raid6_vpermxor4,

	&raid6_vpermxor8,

	&raid6_vpermxor8,

	&raid6_vpermxor4,

	&raid6_vpermxor2,

	&raid6_vpermxor1,

	&raid6_altivec8,

	&raid6_altivec4,

	&raid6_altivec2,

	&raid6_altivec1,

#endif

#endif

#if defined(CONFIG_S390)

#if defined(CONFIG_S390)

	&raid6_s390vx8,

	&raid6_s390vx8,

#endif

#endif

	&raid6_intx1,

	&raid6_intx2,

	&raid6_intx4,

	&raid6_intx8,

#ifdef CONFIG_KERNEL_MODE_NEON

#ifdef CONFIG_KERNEL_MODE_NEON

	&raid6_neonx1,

	&raid6_neonx2,

	&raid6_neonx4,

	&raid6_neonx8,

	&raid6_neonx8,

	&raid6_neonx4,

	&raid6_neonx2,

	&raid6_neonx1,

#endif

#if defined(__ia64__)

	&raid6_intx32,

	&raid6_intx16,

#endif

#endif

	&raid6_intx8,

	&raid6_intx4,

	&raid6_intx2,

	&raid6_intx1,

	NULL

	NULL

};

};

CRA Git | Maintained and supported by SUSTech CRA and CCSE